Jacquard-card and method of making same.



Patented 1m 3, 1902.

ZCZEPANIK, 0 METHOD OF I KING SAME. tion filed Mar. 19, 19

. J. JAGIIUARD CARD A (Applic'n (SpecimenaJ UNITED STATES Y PATENTOFFICE.

' JAN SZCZEI ANIK, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOR TO SOCIETE DESINVENTIONS JAN SZOZEPANIK & CIE., OF VIENNA,

AUSTRIA-HUNGARY, A FIRM.

JACQUARD-CARD AND METHOD OF MAKING SAME.

SPECIFICATION forming part of Letters Patent No. 701,775, dated June 3,1902.

Application filed March 19,1900. Serial No. 9,329. ($pecime11s.)

T0 (ZZZ whom, it may cancer-7t:

Be it known that I, J AN SZO EPA IK, a subject of theEmperoroffAustria-Hungary, residing at Vienna,-in the Province of LowerAustria, in the Empire of- Austria-Hungary,

'templets or diagrams, (hereinafter called templets,) each composed" of"conducting and non-conducting portions for electricallydrivenweav1ng-machines,as jacquard machines and dobbies, and alsoforelectricallydriven card-punching machines.

The several steps ofthe process are modified, as will be hereinaftermore particularly explained,in order that the current-interrupt ingparts, which are formed by an insulating layer, may, as required, bethick or thin, as it may be for card-punching machines and for machinesin general that take little cur rent.

Referring to the drawings, in which like parts are similarlydesignated,-Figure l'repj resents a portion of acard made in accordancewith my invention, and Fig. 2 is a tionv on an enlarged scale.

The metal plate a is provided with a coat-- ing made by photography andwhich exposes certain portions of the plate, as shown at a, and whichare therefore conductive portions and covers up certain otherportions,asshown at b, which are non-conductive, the whole b'eing divided intosquares, each of which represents a weaving-stitch and corresponding tothe blanks and perforations in'ordinary jacguard-cards.

In carrying out the'process a reduced negative of the design is obtainedphotographically, and from that, after development, another photographis taken through a screen, whereby apositive diagram is obtained. Thisdiagram can either be taken on sensitive paper and transferred to ametal plate or be produced directly on the metal plate by phosectography. In the former case the photographic positive to'be takenthrough the screen is producedon a translucent material, preferablysilver bromid paper, which after development is renderedtranslucent,(capable of being copied by'oil of-turpentine or vaseline-oi l,) andtheneither a copy of this positive ismade on pigment-paper and trans ferredto the metalplateor the positive produced in this manner is transferreddirect to the metal plate, which 'must in this case have been previouslycovered with a layer of a suitable pigment, for which a suitable vehicleis gelatin, fish-glue,india-rubber, or asphaltum.=- In the second case,with a view to the direct production of the positive diagram on themetal plate, a highly light sensitive emulsion, such as is used inphotography, is after laying on one or more insulating layers of lac,for instance, applied to the layer of pigment placedon the' metal plate,the object being to overcome the difficulty caused by the low lightsensitivityof the layer of pigment. Aphotograph is taken'through thescreen on this sensitive layer, and the picture is developed and fixedas usual. Then the plate is exposed again and for a longer time tothelight, whereby the picture on the first surface is copied through theinsulating layer on the layer of pigment. During the development ofthepigm'entfpicture, which takes place in the known way in lukewarmwater, the light sensitive and insulating layers and also theundeveloped portions of the pigment layer dissolve away and the positivepigment picture remains on the metal plate. In this way places ofcurrent interruption are produced on the metal plate by portions of theinsulating layer sufficiently thick even forhightension 'currents,andtherefore for large electrical weaving-machines.

In the .case of electrical cardpunching machines, for which a very thininsulating layer is sufficient, since they work with low tension, it isnot necessary before photographing through the screen to apply a layerof pigment to the metal plate, and the highly light sensitive materialmay be applied to the plate itself, which shouldbe previously silvered.In this case development is carried out with a tanning developer-forexample, a mixture of pyrogallol and an alkali-and it is 'then washed,so as to remove the unilluminated parts.

The metal templet produced in any of the ways hereinbefore described isfinally treated with alum solution or with formalin in order to hardenthe current -interrupting layer. WVhen fish-glue is used as a vehiclefor the pigment, the hardening may be effected by burning in'the layerinenamel fashion. The templet produced in this way is in all cases apositive.

If, as is often the case, it is desired that the templet appear as anegative, an ordinary developer, such as hydroquinon, is used fordeveloping the positive produced on the metal plate, as hereinbeforedescribed. Then it is fixed and thoroughly washed, and the picture ordiagram is wiped over with ammonium persulfate, (N H 80,, which causesthe picture to fade out. Then it is washed again, and finally furtherdeveloped in tepid water, whereby the black parts are washed away.

I claim- 1. The process of making weaving cards or designs, whichconsists in coating a suitable metallic plate with an actinic film,photographically copying a weaving-pattern on said film, developing thelatter to expose parts of the metal plate, substantially as described.

2. The process of making weaving cards or designs, which consists incoating a suit-able plate with an actinic film, coating this film withone or more coats of a transparent substance, then applying a secondactinic film, providing said plate with a suitable photographic recorddeveloping the second actinic film, then exposing the plate to light anddeveloping the first actinic film, substantially as described.

3. The process of making weaving cards or designs, which consists incopying a diapositive through a suitable screen on a silvered metallicplate coated with an actinic substance, developing and hardening saidactinic coating, substantially as described.

4. The process of making weaving cards or designs, which consists incoating a suitable metallic plate with a slow actinic film, coating thelatter with a transparent film, and then applying a second and morerapid actinic coating, providing said plate with a suitable photographicrecord, developing the second actinic film, exposing the plate to lightand developing the first actinic film so as to expose parts of themetallic plate, substantially as described.

5. The process of making weaving cards or designs, which consists incoating a suitable plate with an actinic pigment film, coating thepigment film with one or more coats of a non-conductive transparentsubstance, then applying an actinic coating, exposing said plate to aphotographic diapositive, developing the outer actinic film, thenexposing the developed plate to light and developing the pigment layer,substantially as described.

6. The process of making weaving cards or designs, which consists incoating a suitable metallic plate with a slow actinic pigment film,coating the latter with a transparent non-conductive film, and thencoating the latter with a more rapid actinic film, exposing the plateunder a suitable photographic diapositive, developing the outer film,exposing the plate to light and then developing the second actinicfilm,substantially as described.

7. The process of making weaving cards 01' designs, which consists incoating a suitable metallic plate with a slow actinic pigment film, thenwith a suitable lac, and then with a more rapid actinic film exposingthe plate to a photographic diapositive and a suitable screen, therebydividing the photographic record so as to indicate the stitches of aweavers pattern, developing the outer film, exposing the developed plateto light, removing the lac and developing the under film to expose partsof the metallic plate, substantially as described.

8. The process of making weaving cards or designs, which consists incopying a photographic diapositive through a suitable screen onsensitized paper, developing the print, rendering the paper transparent,copying the print on sensitized pigment-paper, developing this print,transferring the pigment film from the paper to a suitable metallicplate and hardening said pigment film, substantially as described.

9. The method of producing weaving pattern cards or designs, whichconsists in coating an electrically-conductive support with an actinicfilm, copying a photographic plate through a suitable screen on saidfilm, developing and fixing the latter to produce a positive, treatingthe film with a suitable chemical to cause the picture to fade out andwashing to remove the dark portions on said plate to produce a negativepicture, substantially as described.

10. A card or design for jacquard-weaving, comprising a metallic plateprovided with a finished photographic record to indicate aweaving-crossing, substantially as described.

11. A card or design for jacquard-weaving, comprising a silveredmetallic plate provided with a finished photographic record to indicatea weaving-stitch, substantially as described.

12. A card or design for jacquard-weaving, consisting of a silveredmetallic plate with a finished photographic record thereon havingelectrically conducting and non-conducting parts arranged to indicate aweaving-crossing, substantially as described.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

JAN SZCZEPANIK.

Witnesses:

ALVESTO S. IIOGUE, AUGUST FUGGER.

